The following are national averages on mortgage rates for the week ending Dec. 6, according to Freddie Mac.

30-year fixed-rate mortgages: averaged 3.34 percent, with an average 0.7 point, rising from last week’s 3.32 percent average. The record low for 30-year rates was set last month, averaging 3.31 percent. A year ago, 30-year rates averaged 3.99 percent.

15-year fixed-rate mortgages: averaged 2.67 percent, with an average 0.6 point, rising from last week’s 2.64 percent average. The record low for 15-year rates was also set last month, averaging 2.63 percent. Last year at this time, 15-year rates averaged 3.27 percent.